An integrated materials handling model for machine location in existing facilities

A machine location criterion is proposed for situations where machines must be located in existing facilities to manufacture new products. The location criterion is based on a measure of materials handling service. It is applicable when an existing, automated materials handling system is fully integrated within an existing manufacturing facility. The service level is measured by the expected rate of unsuccessful load transfers associated with a fixed production schedule, handling system, and assignment of machines to locations in a facility. An analytical model focused on the interfaces of automated materials handling systems is formulated to predict the corresponding service level associated with alternative machine locations in an existing facility. The model is illustrated through a sample problem which demonstrates how the specific operating characteristics of a typical automated materials handling system can be modelled to predict handling performance for alternative machine locations.